The disc cache has recently been updated to track the speed of write operations. The implementation of this briefly introduced a bug generating excessive logging (seen as heavy disc writing and cpu load) which has been squished and CI build #2413 should not have the problem. As a result of this performance tracking The browser will now detect if a system cannot sustain a write speed of one Megabit (120kilobytes / second) the cache will disable itself and display a warning. If this continues to occur the cache is simply not useful on that system and should be configured off (by setting the cache size to 0) The Megabit limit is a practical value derived from experimentation. It in envisaged that the lower disc bandwidth may be tuneable in future based on the users network connection but this needs investigation and careful checking. -- Regards Vincent http://www.kyllikki.org/